How to get GCC for Qt 5.9.5?

hslee_6560

Hello, I am trying to build an open-source in windows 10.
During do it, I ran into a build issue. Please, give me an advice.

the open source is "qt-gstreamer" which is deprecated project.

The link is below
https://github.com/GStreamer/qt-gstreamer

And I am using MinGW32 with Qt 5.9.5, error log is below.

"AutoMoc subprocess error"
:/MinGW/lib/gcc/mingw32/6.3.0/include/c++/mingw32/bits/c++config.:223: Parse error at "__cxx11"

// c++config.h 223:
#if _GLIBCXX_USE_CXX11_ABI
namespace std
{
  inline namespace __cxx11 __attribute__((__abi_tag__ ("Cxx11"))) { }
}

I guess it is occured because of miss-matching between gcc and moc.

In my Qt 5.9.5, the "moc.exe" is in mingw53_32 directory. I don't know what the 53 means though. Anyway so I wanna get new gcc relative with mingw53_32 or get new qt tools for mingw32. It seems easy to do the former rather than the latter.
So.. How do you think about my opinion. If you agree I want to get the download link for the gcc, if you don't I want to get your opinion.

SGaist

Hi,

There's a coherence issue here: you mention 5.9.5 but your shows 6.3.0.

Are you sure you are using the correct version of Qt ?

hslee_6560

@SGaist I think the 6.3.0 is mingw version, not qt version. I realized mingw53_32 is in qt 5.9.5 already. But still working on it. why mingw53_32 is separated in two directories? There are C:\Qt\5.9.5\Tools\mingw530_32 and C:\Qt\5.9.5\mingw53_32. As the contents inside, former looks like MinGW side, and Latter looks like Qt side.

SGaist

C:\Qt\5.9.5\mingw53_32

This means that you have a 32 bit Qt version built with MinGW5.3. The subfolder name indicates which compiler was used as well as the architecture of the build.

The compiler is located under Tools.

hslee_6560

@SGaist I see, I think the mingw53_32 is missed something. So I want to get mingw 5.3.0 separately. is there MinGW archive something for each version of mingw? I could not find it.

jsulm

@hslee_6560 How did you install Qt? The Qt installer and Qt maintenance tool both give you the possibility to install MinGW.

Jleon

Is this problem solved? I've met the same problem. My gstreamer android version:gstreamer-1.0-android-universal-1.18.6. However windows version work perfect.

jsulm

@Jleon said in How to get GCC for Qt 5.9.5?:

I've met the same problem

Not really. Problem in this thread was witn MinGW build on Windows.
You have a problem with Android.
Please explain exactly what you're doing and what the problem you have.

GStreamer on Android: https://doc.qt.io/qt-5/platform-notes-gstreamer-on-android.html

Jleon

I build a qgc project on the windows with qt version 5.15.2 , Android setting:jdk-11,sdk version 9.0 and ndk-verison 21.3.6528147. Before importing gstreamer, it work well. After downloading gstreamer-1.0-android-universal-1.18.6, and change the GST_ROOT at VideoReceiver.pri. I run the program in the abi of arm64-v8a, I get the following error.

:/MinGW/lib/gcc/mingw32/6.3.0/include/c++/mingw32/bits/c++config.:223: Parse error at "__cxx11"
make: *** [Makefile:128648: arm64-v8a\moc_gstqsgtexture.cpp] Error 1
make: *** Waiting for unfinished jobs....
:/MinGW/lib/gcc/mingw32/6.3.0/include/c++/mingw32/bits/c++config.:223: Parse error at "__cxx11"
make: *** [Makefile:129061: arm64-v8a\moc_qtwindow.cpp] Error 1
:/MinGW/lib/gcc/mingw32/6.3.0/include/c++/mingw32/bits/c++config.:223: Parse error at "__cxx11"
make: *** [Makefile:129457: arm64-v8a\moc_qtitem.cpp] Error 1
10:21:56: The process "D:\Android\sdk\ndk\21.3.6528147\prebuilt\windows-x86_64\bin\make.exe" exited with code 2.
Error while building/deploying project qgroundcontrol (kit: Android Qt 5.15.2 Clang Multi-Abi)
When executing step "Make"

Should I modify the document of gradle?

jsulm

@Jleon I don't understand what you are doing: if you're building for Android then why there is mingw32 stuff in the build log?!
And you always should post the very first error.

Jleon

Alright the first error is AVD start error, but I thought it's irrelevant. Well my setting is the belowing:

else : android-clang {
        CONFIG += AndroidBuild MobileBuild
        DEFINES += __android__
        DEFINES += __STDC_LIMIT_MACROS
        DEFINES += QGC_ENABLE_BLUETOOTH
        DEFINES += QGC_GST_TAISYNC_ENABLED
        DEFINES += QGC_GST_MICROHARD_ENABLED
        QMAKE_CXXFLAGS_WARN_ON += -Werror \
            -Wno-unused-parameter \             # gst_plugins-good has these errors
            -Wno-implicit-fallthrough \         # gst_plugins-good has these errors
            -Wno-unused-command-line-argument \ # from somewhere in Qt generated build files
            -Wno-parentheses-equality           # android gstreamer header files
        }

I was not sure why did mingw32 in there.

Jleon

I found the answer.
Go to the file:C:\MinGW\lib\gcc\mingw32\6.3.0\include\c++\mingw32\bits\c++config.h
And modify the code

#define _GLIBCXX_USE_CXX11_ABI 0

from 1 to 0
But I don't think it is the best solution, it might destroy some structure.
What flags should I use in .pro to make sure the file got to know it defines to zero?

jsulm

@Jleon I still fail to understand what MinGW stuff has to do with Android build.
For Android the Clang compiler from NDK is used.
It seems that your environment is broken.